Yes, anxiety is considered a mental illness. It is a condition characterized by persistent feelings of worry, fear, and apprehension that can interfere with daily life. Anxiety disorders are among the most common mental health disorders and can range from generalized anxiety disorder (GAD), panic disorder, social anxiety disorder, obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), and specific phobias. These disorders can be debilitating and can negatively impact a person’s relationships, work, and overall quality of life. Treatment for anxiety disorders may include therapy, medication, and lifestyle changes.